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What can cause a circuit breaker to suddenly start tripping?


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Answered 2005-03-20 22:30:29

If the breaker trips when nothing is turned on it could be a mouse problem. If it only trips when certain lights or appliances are turned on one of them is probably the reason.If it trips when nothing is being turned on or off something is getting hot. You should then have qualified electrician look at it. Hope this is usefull.

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What causes a circuit breaker to switched off?

The need to de energize the circuit the breaker is feeding is a cause to have a circuit breaker switched off. If you are referring to a breaker tripping off, the cause would be from an overload condition being applied to the circuit, the breaker sensing it and shutting the circuit off.


How does a circuit breaker use an electromagnet?

The electromagnet in the circuit breaker is used for instantaneous tripping if short-circuit condition arises. At defined current level the electromagnet develops the force high enough to cause the tripping of the mechanism.


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Why do people consider it a real bother when a circuit breaker switches off?

It means that the person has to go and re set the breaker. If people understood that the tripping of the breaker is a safety device and by its tripping it might have just saved them some money. By preventing a fault that a short circuit or an overload could cause might just have stopped a potential house fire.


What would cause a breaker to keep tripping?

A breaker will keep tripping until the fault that caused it to trip is corrected. That's what it is designed to do. There's either a circuit overload or a short circuit. How fast the breaker trips can indicate how overloaded it is. If you are very close to the rating of the breaker you can actually trip it over time. If you are definitely over the breaker will usually trip instantly. If there is a short circuit you can usually tell that by how violently the breaker trips. If you have conduit you can hear the wires banging around in the pipe. A frequently tripping breaker may also be faulty and need to be replaced - breakers are designed to fail by tripping prematurely rather than by not tripping at all, as this is much safer. This is very often the case for breakers that trip at seemingly random intervals, often when very little load is being drawn.


Which circuit faults will not result in overheating the circuit?

An open circuit won't cause any overheating because no current is flowing. Other faults like ground fault or a breaker tripping should happen fast enough not to cause any overheating either.


What would cause circuit breaker to trip in new box from old box?

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What would cause a circuit breaker heating element to trip off?

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A circuit breaker is used to ensure that the circuit doesn't get overloaded with too much wattage or voltage, which can cause a fire.


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What makes a circuit go out without tripping the breaker?

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What is the difference between over load and circuit breaker?

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What might cause a breaker to trip when switching on a light when resetting the breaker and checking the fuse doesn't restore power to one circuit?

Overloaded circuit, short in circuit, or defective switch.


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On my water well pump what would cause my circuit breaker to keep tripping?

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